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OP Chrome Take a Test olander Stokes Secure https www.mathxl.com/ Student/Player Test.aspx?testld 152244885&centerwin; yes Math 1111 32 Quiz: Module 2 Quiz online (Quiz on Lessons 7-14) This Question 4 pts 12 of 25 (21 complete) How many gallons each of 30% alcohol and 5% alcohol should be mixed to obtain 25 gal of 9% alcohol? Gallons of Gallons of Solution (as a decimal) Pure Alcohol 30% 0.3 How many gallons of 30% alcohol should be in the mixture? gal How many gallons of 5% alcohol should be in the mixture? gal Enter your answer in each of the answer boxes. Olander Stokes 2/27/17 3:00 AM Time Limit: 03:00:00 Submit Quiz This Quiz: 100 pts possible 3:00

Solution

X gallon of 30% alcohol and Y gallon of 5% alcohol

To make 25 gallon of 9% alcohol

X+Y = 25

0.3X + 0.05Y = 0.09(25) = 30X +5Y = 225

30X + 5(25-X) = 225

25X = 100

X = 4 and Y = 21

4 gallons of 30% alcohol and 21 gallons of 5% alcohol